Open @NT07562@ formed by the removal of all swelling agents from a @G02600@.
  1. Examples of xerogels include silica @G02600@ and dried out, compact, @M03667@ structures, such as gelatin or rubber.
  2. The definition proposed here is recommended as being more explicit.
PAC, 2007, 79, 1801. (Definitions of terms relating to the structure and processing of sols, gels, networks, and inorganic-organic hybrid materials (IUPAC Recommendations 2007)) on page 1808 [Terms] [Paper]